FR2862753A1 - Meter e.g. water meter, connecting device, has non-through hole opening out at level of lateral wall of bushel, when it is oriented, in order to enable partial introduction of hole inside bushel - Google Patents

Abstract

The device has a through hole (14) opening out at the level of a lateral wall of a bushel (13), when it is oriented, to connect a movable bushing (6) with a fluid e.g. water, supply system. A non-through hole (15) opens out at the level of the lateral wall of the bushel, when it is oriented, in order to enable the partial introduction of the hole (15) inside the bushel.

Description

2 2862753

  If undoubtedly, this type of device makes it possible to fight against fraud in part, it nevertheless has the disadvantage, when it is desired to replace the meter, to require the installation upstream of the isolation valve of a spatula closure of the water supply duct, affecting the efficiency of the work of the attendants.

  The object of the present invention is to propose a tamper-proof type counter, which does not have these disadvantages.

  Thus, it proposes a device for connecting a meter at a fluid delivery station, and in particular water, provided with a valve or isolation valve, and a movable bushing, said socket being intended to allow the coupling of said counter with the isolation valve, and being capable of translating within the isolation valve located upstream of the meter.

  It is characterized in that the isolation valve comprises a plug, operable limitatively in rotation, and provided with: a first through-hole opening at its side wall by means of an orifice of diameter less than or equal to the diameter external of said socket in line with it when the bushel is oriented accordingly, and capable of communicating the bushing with the fluid distribution network; a second non-through light independent of said first light, also opening at its side wall, directly above the movable bushing when the bushel is oriented accordingly, and with an internal diameter greater than the outside diameter of said bushing; , to allow the partial introduction thereof into the bushel.

  Thus, in normal operation, that is to say during the actual distribution of the fluid within the housing considered, the movable sleeve can not enter the bushel, possibly allowing the closure of the power supply at will. user.

  On the other hand, since the rotation of said bushel is limited by construction, the user can not in any case position the non-emergent light above the bushing, and thus allow its withdrawal inside the bushel, to allow, if necessary, uncoupling the meter. In this configuration, since the light 2842753 making it possible to carry out this operation is not open, especially at the level of the water supply network, there is therefore no risk of spraying, the plug closing the communication of the mobile socket with the network.

  According to the invention, the means for limiting the rotation of the plug consists of a cap, which is secured on the upper face of the isolation valve, and provided with stops on its lower face, at the level of which is cooperated a protruding lug, formed on the upper face of the bushel.

  According to another characteristic of the invention, the plug is of frustoconical shape.

  The manner of carrying out this invention and the advantages which result therefrom will emerge more clearly from the exemplary embodiment which follows, given by way of indication and not limitation, in support of the appended figures.

  Figure 1 is a schematic longitudinal sectional representation of an embodiment of the invention, implementing a frustoconical valve isolation in the absence of the meter.

  Figure 2 is a schematic sectional representation of the plug according to the invention.

  Figure 3 is a schematic perspective view from below of the operating lid according to the invention, Figure 4 is a plan view.

  Figure 5 is a schematic perspective view from below of a particular lid, called the net of life, of which Figure 6 is a plan view.

  FIG. 7a is a diagrammatic representation in section of the isolation valve in the position of use in use, of which FIG. 7b is a partial schematic representation in perspective.

  Figure 8a is a diagrammatic representation in section of the isolation valve in the closed position by the subscriber, of which Figure 8b is a diagrammatic representation in perspective and Figure 8c is a view from above.

  Figure 9a is a schematic representation in section of the isolation valve in the maintenance position, with the non-inserted movable sleeve, Figure 9b is a partial schematic perspective view.

  FIG. 10a is a diagrammatic representation in section of the isolation valve in the maintenance position, with the partially inserted movable bush, of which FIG. 10b is a partial schematic perspective view.

  FIGS. 1a, 1b and 1b are views respectively in section, in perspective and from above of the isolation valve in the position of water thread or safety net.

  FIG. 1 shows a connection device according to the invention. In this case, the following exemplary embodiment is more particularly described in relation to a water meter. Of course, it is applicable to any distributor of liquid fluid.

  This connection device basically comprises a fixed part or base (1), provided with an isolation valve (2), at which opens the inlet (4) of the water distribution network, and a body of valve (10), from which the pipe (5) for domestic water supply within a dwelling for example. It is symbolically represented at these inflow and outflow of water (4, 5) a snap fitting or a thread for cutting said pipes, respectively on the isolation valve (2) and on the valve body (10). .

  In known manner, the isolation valve (2) is intended to close the water supply to the house. This isolation valve comprises a plug (13), of substantially frustoconical shape, capable of being rotated by means of a bracket or operating key (3) to which it is secured, as well as will be described below in more detail.

  It should be noted that in the schematic example, the water supply (4) of the network is horizontal and in any case oriented in a direction perpendicular to the axis of rotation of the plug (13).

  However, the isolation valve (2) is provided with a cap (7), positioned on its lower face, capable of releasing a fixing light of the ring (4) for connection to the supply network which, in this case, case there is coaxial in any case oriented in a direction parallel to the axis of rotation of said plug (13).

  The valve body (10) is provided with two bleed plugs (11, 12) respectively located substantially in the extension of the connecting ring (9) on the downstream outlet of the meter, and in the extension of the outlet pipe water (5) on the housing network consider. These plugs thus make it possible to purge said body both in the upper position and in the lower position.

  According to the invention, the actual meter is positioned between the isolation valve (2) and the valve body (10) and is connected by means of a ring (8) provided at one of the ends of the valve. a sleeve movable in translation (6) at the isolation valve (2), and the ring (9) mentioned above. These rings (8, 9) are provided for this purpose with an internal thread. For simplification of the illustration, the counter has not been represented in FIG.

  According to the invention, the movable sleeve (6) is able to penetrate, at least in part, inside the isolation valve (2), and as described in more detail, inside. frustoconical plug (13).

  This frustoconical bushel has been better represented in relation to FIG.

  It is provided with two lights, respectively (14, 15) opening at the side wall of the plug. As can be seen, the respective areas of uncoupling of these lights are diametrically opposed.

  The first lumen (14) is through and forms a bend opening at (16) at the base of the plug. As can be seen both in FIG. 1 and in FIGS. 7 to 11, this opening (16) allows the communication of the water supply network with the light (14).

  On the other hand, the light (15) is non-through and forms a sort of cul-de-sac.

  According to the invention, the upper part of the plug comprises firstly a member (17), allowing the reversible attachment of the stem or operating key (3) for actuating the isolation valve (2). In doing so, the actuation of the bracket (3) induces the rotation of the plug within the valve.

  In addition, the upper face of the plug (13) comprises a lug (18) projecting, intended to cooperate with a lid described in more detail later, in order to limit the rotation amplitude of the plug.

  It will now be described in more detail the various phases of operation of the connection device according to the invention.

  6 2862753 1 / Operating phase in service position In this configuration, that is to say in normal operation of use of the device, the counter being coupled, in particular at the level of the movable bushing (6), the bushel (13) ) is then oriented so as to coincide the opening of the light (14) with the end (19) of said movable sleeve. In doing so, the water can progress within the isolation valve (2), through the movable sleeve (6), the meter and be distributed at the level of the dwelling considered (Figure 7a and 7b).

  FIGS. 8a to 8c show the isolation valve (2) in the closed position by the subscriber, that is to say when the latter wishes to cut off the supply of water to the dwelling, especially for example to place it in frost-free situation. For this purpose, the subscriber prints a rotation of 90 to the bushel (13) via the bracket (3), so that the bushing (6) is no longer in communication with the through-light (14) and that consequently, the water can not circulate within it. In fact, the isolation valve is thus dimensioned, that the plug forms joined within it, and that the water, despite the pressure of the supply network can flow only by the light (14).

  It can be observed that, given the smaller dimension of the diameter of the lumen (14) relative to that of the external diameter of the end (19) of the sleeve (6), the latter abuts against the lateral wall of the bushel, and therefore can not back down, prohibiting in fact, uncoupling the meter.

  2 / Maintenance position This position corresponds to the intervention phases of the employees of the water supply company. In this phase, and in particular in the illustration of FIGS. 9a and 9b, the counter is not yet withdrawn, thus uncoupled from the movable bushing (6) and the bushel (13) is oriented so as to make the light coincide non-emergent (15) of said bushel with the end (19) of the bushing.

  In this configuration, it must be emphasized that by the non-emerging nature of this light (15), water from the network through the pipe (4) can not be delivered at the socket, and therefore the meter. It should also be noted that the dimensions and in particular the internal diameter of said non-emergent light (15) corresponds to or is slightly greater than the external diameter of the end (19) of the movable sleeve (6).

  In fact, when the agent uncouples the counter, this operation is made possible by the partial penetration of the end (19) of the socket into the non-emerging lumen (15), as is very clearly apparent on the Figures 10a and 10b.

  31 Position water net or net This position corresponds to a decision of the water distribution company to cut the water supply of the subscriber in question, for example for non-payment of bills. However, and in accordance with the regulations in force, a trickle of water, that is to say a very small water flow must nevertheless be available to the subscriber.

  To do this, the orientation of the plug (13) is such that the through-light (14) opens only in a limited manner at the end (19) of the socket (6), thus greatly reducing the available flow .

  In order not to allow the subscriber to position the plug in the maintenance position, and thus allow it to uncouple the meter, a cap (20) is fixed, in particular by clipping by means of resilient but rigid tabs (22), permanently on the upper end of the isolation valve (2). In fact the lid is made of plastic, chosen sufficiently rigid, to avoid any risk of removal of said lid by the subscriber. It may for example be made of nitrile.

  This lid, shown in connection with Figures 3 and 4, is provided with a through hole (21) allowing the passage of the means (17) for securing the plug to the bracket (3). It is further provided on its underside with two studs (23), formed at the periphery of the orifice (21), angularly offset by approximately 120 °, and at which the spigot (18) cooperates on the face upper of said bushel. In doing so, the subscriber can not rotate beyond the angular difference between these two pads, except to break this seal.

  However, such a break is immediately detected by the attendant who raises the meter when he carries out his operations. It is therefore able, if necessary, to verbalize the subscriber.

  In the same way, another lid (24) shown in relation to FIGS. 5 and 6. This lid functions according to the same principle as the lid (20). It is set up by the attendant when the decision was made to cut off the water to the subscriber. It is also provided with two studs (25), at which the pin (18) of the plug (13) co-operates. However, the angular difference between these two pads is much smaller, and typically close to 55, in particular to prevent the subscriber from having access to the normal flow rate of water use.

  These two lids (20, 24) are as already said, made of rigid plastic material, and breakable. They are also advantageously provided with rupture streaks, resulting from molding, intended to promote the breakage of several elements of said covers, to make it more difficult to bond these different elements together to mask the fraud of the subscriber.

  It is therefore conceivable the interest of the connection device according to the invention, insofar as it allows a simple and effective way to fight against fraud.

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Claims (7)

  1. Device for connecting a meter at a fluid delivery station, and in particular water, provided with a valve or isolation valve (2), and a movable sleeve (6 ), said socket being intended to allow coupling of said counter with the isolation valve, and being capable of translating within the isolation valve located upstream of the meter, characterized in that the isolation valve ( 2) comprises a plug (13), operatively limited in rotation, and provided with: a first through-hole (14), opening at the side wall of said plug (13) in line with the movable sleeve (6) when the plug is oriented accordingly, the outlet zone consisting of an orifice of diameter less than or equal to the outer diameter of the end (19) of the movable sleeve (6), and capable of communicating said sleeve with the fluid distribution network; a second non-through light (15) independent of said first lumen (14), also opening at the side wall of the plug (13), in line with the movable sleeve (6) when the bushel is oriented accordingly, and of greater internal diameter than the outer diameter of the end (19) of said sleeve, to allow the partial introduction thereof into the plug.   2. Device for connecting a meter at a fluid delivery station according to claim 1, characterized in that the outlet areas of the respectively through (14) and non-through (15) respectively are diametrically opposed .   3. Device for connecting a meter at a fluid delivery station according to one of claims 1 and 2, characterized in that the means for limiting the rotation of the plug (13) within the isolation valve (2) consists of a cover (20, 24) which is secured on the upper face of the isolation valve, and provided with abutments or pads (23, 25) on its lower face, at which a projecting lug (18) cooperates with the upper face of the plug (13).   1a 2862753 4. Device for connecting a meter at a fluid delivery station according to claim 3, characterized in that the cover (20, 24) is of two types, respectively one (20). intended for the normal operation of the device, and in which the pads (23) are angularly separated by an angle close to 120, and the other (24), intended for operation in water net or water trick mode, that is to say in limited flow mode, in which the pads (25) are angularly separated by an angle close to 55.   5. Device for connecting a meter at a fluid delivery station according to one of claims 3 and 4, characterized in that the caps (20, 24) are made of rigid plastic material, and in that they are permanently attached to the isolation valve (2).   6. Device for connecting a meter at a fluid delivery station according to one of claims 3 to 5, characterized in that the covers (20, 24) are provided with rupture streaks, molding, intended to promote breakage in several elements of said covers, to make it more difficult to bond these different elements together to hide the fraud of the subscriber.   7. Device for connecting a meter at a fluid delivery station according to one of claims 1 to 6, characterized in that the plug (13) is of frustoconical shape.